Pathfinder still exists — it's exhibited at the U.S. Space and Rocket Center in Huntsville, AL with two SRBs and an ET as a shuttle 'stack' at an angle. Given the honorary number OV-098, it was used as a test article to prove the cranes, structures and other shuttle support hardware worked. Built in 1977, it was retired and put in storage until Japanese investors asked for it to be exhibited at a space expo there in 1983-84. It was returned to the US and has resided in Huntsville ever since.

It was refurbished several years ago to repair corrosion that leaked in thru the fiberglass and wood construction used to make it more 'shuttle-like' for exhibit in Japan.